Banding tool



Jan. 19, 1965 w. HUCAL 3,

BANDING TOOL Filed Nov. 14, 1960 2 Sheets-Sheet 1 mmvron. W\L\ IAM HUCAL Jan. 19, 1965 w. HUCAL 3,166,105

BANDING TOOL Filed Nov. 14, 1960 2 Sheets-Sheet 2 jivvfzv TOR.

M41114! AQ/CAL.

United States Patent Office 3,166,105 Patented Jan. 19, 1965 3,166,105 BANDING TOOL William Huca], 3336 w. 63rd St., Chicago, nu. Filed Nov. 14, 1960, Ser. No. 68,745 5 Claims. or. 140-932) This invention relates to improvements in a banding tool for handing objects with a band securing clip and band material assembly wherein the assembled clip and band material are nested in the tool and the tool with its nested assembly then positioned against the object and the assembled band material then wound manually about the object and the tool with its surplus band material then secured in a pawl of the tool. The band material is then tensioned about the object, its surplus band material severed from the tensioned band material and the severed end of the tensioned band material secured to the nested clip of the assembly by actuation of a hand lever of the tool.

The tool is adapted for handing objects with a band securing clip and band material assembled similar to that described in US. Patent 2,653,362, of September 29, 1953, therefore the invention provides a tool for applying clip and band material assemblies similar to the assembly shown in FIGURE 1, of the above identified patent wherein clips and predetermined lengths of band material are assembled with each other and supplied in package as articles of commerce, and hereinafter the assemblies referred to are intended to apply to the securing clip and band material assembled together as described in the above identified US. patent.

In banding objects with the above assemblies the tool Wastes a short length of surplus band material in each banding operation, however, the clip may be attached to the free end of the wire withdrawn from a supply coil of band material before each banding operation, and with this procedure no surplus band material will be destroyed or wasted in any step of tensioning and securing bands about objects with the tool of this invention.

Under this system of handing objects with the tool of this invention the clip of the assembly is positioned in a nest in the tool and the assembled band material is positioned in a groove of the tool, that communicates with said nest, and both the tool and its positioned assembly is then positioned against an object, preferably the top side, and the free end of the assembled material is then Wound about both the object and the positioned tool with its surplus band material temporarily secured in a takeup pawl of the tool in overlapping relation of the nested clip. A hand lever is then moved to tension the wound band material, sever surplus band material from the tensioned band material and to secure the severed end of the tensioned band material in an opening in the nested clip. On returning the hand lever to its former position the tool may be released from both the object and the secured band by moving the tool along the secured band.

The principal object of the invention is to provide a tool whereby an object may be manually banded with a clip and band material assembly by the following method: positioning the assembly with its clip and assembled material in a communicating nest and groove in the tool; positioning the tool and its assembly against an object; winding the assembled band material around both the object and the positioned tool in a plane corresponding with the plane of openings from said nest and its communicating groove; initially securing the surplus assembled material in a pawl mechanism of the tool and actuating a hand lever for tensioning the wound band material, severing surplus band material from the tensioned band material; securing the severed end of the tensioned band material to the nested clip and returning the hand lever to its original position to release the tool from both the object and its secured band.

In prior forms of manual handing the continuous exertion of manpower required to tension secure the bands about objects by the conventional twisting of band material creates fatigue conditions that impairs personal efficiency and in addition the sharp projections often formed and extending from the ties in the tensioned bands on objects cause both personal injury and property damage during the shipping and handling of banded objects and these ob-jectional features are substantially eliminated by providing a tool for banding objects with the clip and band material assemblies that can be operated manually without excessive exertion of manpower.

The foregoing object, and other objects of the invention, are attained by the provision of a tool having a structure which includes: nesting means for positioning a clip assembled on an end of band material; channel means communicating with said nesting means for positioning said assembled band material; takeup pawl mechanism for temporarily securing surplus band material and for taking up surplus band material withdrawn during the tensioning step of a banding operation after the assembled band material has been wound around both the object and the tool which has been positioned against the object; gripper means cooperating with a bar of antifriction material for exerting tension in the wound band material; severing mechanism adapted for severing surplus band material from the tensioned band material and for securing the severed end of the tensioned band material to an assembled clip nested in the tool and a hand lever with connections whereby said tensioning, severing and securing mechanism of the tool may be actuated manually.

In order to acquaint those skilled in the art with the manner of constructing and utilizing the invention, in accordance with the principles involved, a detailed description of a tool embodiment of a preferred construction of this invention is described in connection with the accompanying drawing, and from this description further objects and features of the invention will appear to those skilled in the art.

In the drawing:

FIGURE 1 is a top or plan view of a tool constructed in accordance with this invention, showing the tool with a hand operating lever extending in an opposing direction to the direction of a positioning handle, the relative directions necessary to make the tool ready for manually nesting a clip and band material assembly in the tool, as a first step in a banding operation with the tool;

FIGURE 2 is an elevational view of the lower edge of the tool shown in FIGURE 1, in a direction as indicated by 22, FIGURE 1, and showing the hand actuating lever of the tool extending in about the same direction as the positioning handle of the tool, the relative position the lever and the handle assume on securing a band about an object with the nested clip;

FIGURE 3 is a bottom view of the opposite side of the tool shown in FIGURE 1 and showing the operating and positioning levers of the tool in the same relative position as that shown in FIGURE 1, and also showing by dotted line an outline of a plan view of a clip nest;

FIGURE 4 is an elevational view of the upper edge of the tool shown in FIGURE 1, in a direction as indicated by 44, FIGURE 1;

FIGURE 5 is an elevational sectional view of the tool shown in FIGURE 1, on a line as indicated by 55, FIGURE 1;

FIGURE 6 is an elevational sectional view of the tool shown in FIGURE 3, on a line as indicated by 6-6, FIGURE 3, and showing an end view of a clip nest 61 and the wire cutting knife 45 in the position assumed after the knife has forced the severed end of the tensioned band into an opening of a clip positioned in the nest 62;

FIGURE 61: is a sectional view in part showing a knife positioning spring and its adjusting screw, on a line as indicated by 6a6a, FIGURE 2;

FIGURE 6b is an enlarged view of the section shown in FIG, 6 with some of the background lines left out to expose a clear space for passing surplus banding material past the severing and securing knife of the tool;

FIGURE 6c is a sectional view similar to that shown in FIG. 6b showing the severing and securing knife in engagement with the banding material before severing surplus band material from a tensioned band;

FIGURE 6a is a sectional view similar to that shown in FIG. 6b showing the position of the severing and securing knife of the tool after the banding material has been severed and before the severed end of the tensioned band material has been inserted into an opening of the nested clip; and

FIGURE 6e is a sectional view similar to that shown in FIG. 6b showing the position of the severing and securing knife of the tool after it has secured an end of a tensioned band into an opening of the nested clip.

In FIGS. 6c, 6d and tie the band material 24 is shown by a solid dot.

FIGURE 7 is an elevational end view of the tool shown in FIGURE 1, in a direction as indicated by 7-7, FIG- URE 1;

FIGURE 8 is an elevational end view of the tool shown in FIGURE 1, in a direction as indicated by 8-8, FIG- URE 1;

FIGURE 9 is an elevational sectional view of one of the frame assembly screws, with a screw shown in full, in a direction as indicated by 9-9, FIGURE 8;

FIG-URE 10 is an elevational sectional view in part of a wire cutting anvil of the tool shown by FIGURE 1, with the anvil shown in full, on a line indicated by 1010, FIGURE 4;

FIGURE 11 is an enlarged top or plan view of a band securing clip and handing material assembly.

In FIGURES 1 and 5 of the drawing, the wire is shown by a heavy solid line.

Referring now more in detail to the several figures of the drawing, 11 and 12 are two separate parts of the tool frame and these two parts are secured to each other by screws 13 and pilot bushings 14 (see FIG. 9) and a third part 15 of the frame has rigidly secured to it by two setscrews 27 two separate rods 16 that are slidably mounted in two holes 17 (see FIG. 3) in the frame part 11, and a third guide rod 18 slidably passes through the third frame part 15 and is threaded into the frame part 11 (see FIG. 3) and this rod 18 carries a spring 19 and an adjusting nut 20 which predetermines the exertion of the spring 19 against the frame part 15 and maintains the frame part 15 against the frame part 11 except when tension in the assembled band material exerted by the tool during a tensioning step of a banding operation exceeds the limit predetermined by the adjustment of the nut 20, as hereinafter will be explained.

Secured to the frame part 12, by screws or rivets 21, is a bar 22, of bronze or other bearinglike material for presenting an antifriction surface 23 for wire to slide against when the wire is pressed against this surface 23 during a tensioning step of a banding operation.

Slidably mounted on the rod 18 and against a slidable smooth surface 25, on the frame part 11, is a gripper block 26 that carries a friction adjusting screw 28 and between this screw 28 and the rod 18 is a friction plug (not shown by drawing) against the rod 18 and a spring that are arranged so that pressure on the rod 18 by the plug and the spring may be adjusted by the screw 28 to increase or decrease friction by the block 26 on the rod 18 so as to effect movement of said block 26, for the purpose hereinafter explained.

Slidably mounted to the gripper block 26, by a screw 4 29, is a gripper 30 that carries a pluraiity of teeth 31, and a recessed slot 32 through this gripper 3%], through which the screw 29 passes and its head is located, and this slot 352 permits a relative movement between the gripper block 26 and the gripper Sit, in an angular direction.

A crank 33 has a projection shown by dotted line lines 35 (see FIG. 1) journaled in a bore in the frame part 15 and said projection is secured therein by a screw and washer 36 and this crank is connected by a link 37, screw 38 and a pin 39 (see FIG. 5) to the gripper 30. A hand lever 40 is pivoted to the frame part 11 by a screw 41 and a link 42 and a pivot 43 and a screw 44 connects the lever 40 to the crank 33, therefore through the connections of the links 37 and 42, a movement of the lever 40 from its position shown in FIGS. 1, 3, 4 and 5, toward the position shown in FIG. 2, will turn the crank 33 so as to first: move the gripper 30 in a diagonal direction until its teeth 31 bed themselves into the nested band material 24, which had previously been wound around both the object and the tool positioned against the object, in overlapping relation to the nested clip of the assembly as shown by 24a and between said gripper teeth 31 and the gripper cooperating antifriction bar 22 as a first step in an operative banding of the object, and second: to move the gripper 30 so as to slide the band material 24 along the antifriction bar 22 and through between the pawl 53 and its cooperating projection 55, so as to tension the wound band about the object.

On the final return movement of the lever 40 to its former position a face 48 thereon engages the top side of the knife 45 and turns the knife against exertion of spring 52 around its pivot 46 thereby lifting the opposite end of the knife from the secured end of the tensioned band so that the tool may then be released from the secured band and the object by movement of this tool along the secured band.

The wire severing knife 45 carries a rigid pin 51 that extends through a larger hole 56 (see FIG. 6a) and into a bore in which is mounted a spring 52 and a spring adjusting screw 52a and this spring is arranged to exert pressure against the knife pin 51 and move the severing face of the knife 45 against the wound wire held in overlapping relation of the nested clip by the pawl 53 as soon as the lever 40 begins its initial movement of an operating step.

An anvil 51a is arranged for cooperating with the knife 45 in severing surplus band material from tensioned band material (see FIGS. 5 and 10) has a tapped hole in its outer end for receiving a screw for the purpose of convenience in removing the anvil from its mounting bore in the frame part 12 and a setscrew 68 serves to secure the anvil in its operative position and making it secure in this position.

A flexible pawl 53 is secured to the frame part 12 by a screw 54 and cooperates with a projection 55 on the frame part 12 and this pawl and its cooperating projection are so arranged that when band material 24a is forced between the pawl and the projection the band material can only be moved endwise in an outward direction so as to tension the wound band material about an object, and this pawl and its projection are also arranged so as to prevent any reverse movement of the band material 24:: in the event that it may be necessary to reciprocate the lever 40 during a tensioning step to withdraw exeessive surplus band material wound about the object.

The frame part 12 is recessed as shown at 57 to facilitate nesting the overlapping surplus band material 24a under the cutting face of the knife 45 and between the pawl 53 and its cooperating projection 55 during the winding of band material about both the object and the tool.

In the event that tension exerted by the gripper 30 in the wound band material exceeds that predetermined by adjustment of the nut 20 on the rod 18 (see column 3,

lines 52 to 59) the frame part 15 will be moved by the projection 35 from the frame part 11 through rotation of the crank 33 and this movement of the frame part 15 will prevent any further tensioning of the wound band material by action of the gripper 30.

Referring now back to column 3, lines 65 to 74, when the link 37, which connects the crank 33 to the gripper 30, begins to move the gripper the teeth 31 embed themselves into the wound band material to an extent which has been predetermined by adjustment of the friction between the gripper block 26 and the rod 18, by the screw 28, before the block 26 can move the gripper 30 for tensioning the wound band material, and this arrangement provides for limiting the embedment of said teeth into the wound band material during the tensioning step of a banding operation by the gripper 30.

The shearing edge of the knife 45 and the anvil 51 are on the line 58, as shown in FIG. 5, and section 59 of the frame part 12, shown in FIG. 5, forms a web between two grooves or channels 60 and 61 which are adapted for nesting band material. The nest 62 for receiving the assembled clip, shown in FIG. 6 and by the dotted lines 62 in FIG. 3, communicates with the groove or channel 61. The handles 63 and 64 are inserted into bores in the frame part 11 and in the operating lever 46 and are secured therein by setscrews 65 and 66, and a pin 67 projecting from the frame part 11 limits movement of the operating lever 40, in that direction, to the exact position of forcing the severed end of the tensioned band material firmly into an opening in the nested clip of the assembly.

In operation, the assembly shown in FIG. 11 of the clip 50 and handing material 24 is positioned in the clip nest 62 and banding material groove 61 of the tool and then the tool with its nested assembly positioned against a side, preferably the top side, of an object to be banded and the free end of the banding material 24 then wound in a plane of the band about both the object and the tool with the banding material of the assembly then positioned in said plane between the antifriction bar 22 and the tcnsioning gripper teeth 31, as shown in FIG. 5, and in overlapping relation to the assembled nested clip as also shown in said FIG. 5, and with its surplus assembled Fband material and 240 secured between the taleeup pawl 53 and its cooperating projection 55, as also shown in said FIG. 5.

With the tool and assembled clip and band material nested as described in the preceding paragraph the steps of a banding operation may then be actuated by moving the lever 40 from the position shown in FIGS. 1, 3, 4 and 5, toward the position shown in FIG. 2 and returning said lever 40 from the position shown in FIG. 2 to its original position. The tool may then be released from the secured band and the object by moving the tool along the secured band.

During movements of the lever 40 as described in the preceding paragraph the following movements of mechanism of the tool takes place: surface 48 on lever 40 releases knife 45 thereby permitting spring 52 to move the cutting and securing face of the knife 45 into contact with the positioned band material 24 and at the same time gripper teeth 31 embed themselves into the band material 24 and press the band material against the antifriction bar 22; gripper 30 then slides band material along antifriction bar 22 for tensioning wound band material and at the same time surplus band material withdrawn from tensioning the band material about the object is forced by the gripper 30 through between the knife 45 and its cooperating anvil 51a and also through between the pawl 53 and its cooperating projection 55; projection 47 then engages knife 45 and forces its opposite end to sever the tensioned band material at line 58 and also forces the knife to secure the severed end of the tensioned band material into an opening in the nested clip of the assembly. The operating lever may then be returned to its original position as shown in FIG. 1, and the tool then removed from the secured band and the object as hereinbefore explained.

When the tool is made ready for a banding operation and before the knife has been released by movement of the lever 40, as described in the top lines of the next preceding paragraph, the knife 45 is held by the surface 48 on the lever 40, in the position seen in FIG. 611, so as not to obstruct winding of the surplus banding material 24a into the groove 60, and after the surface 48 has released the knife 45 the knife is then forced by the spring 52 into contact with the banding material 24, which had been previously wound about both the object and the tool, into the groove 60, as seen in FIG. 60.

After the knife 45 engages the banding material 24 as seen in FIG. 60 the lever 40 may then be reciprocated backwards then forwards to cause the teeth 31 of the gripper to exert progressive steps of tension in the wound band to the limit predetermined by adjustment of the nut 20, and on further movement of the lever 40 in a forward direction the tensioned band is severed by the knife at the line 58 (see FIG. 5) from the surplus banding material 24a and the severed end of the tensioned band forced against an opening in the clip as seen FIG. 6d so that further movement of the lever 40 in a forward direction will force the severed end of the tensioned band into said opening of the clip 50 as is seen in FIG. 60.

Iclaim:

l. In a banding machine for tensioning and fastening a band of wire and a clip about an object, said clip interposed between the ends of the wire, said clip having at least two longitudinal securing openings with yaws extending inwardly from its opposite end edges, a partition portion of said clip disposed between the said openings therein, the openings having a width to grip the sides of the wire and secure the wire therein when pressure is applied to the wire, one end of the band of wire secured within one opening of said clip leaving the opposite end of the wire a free end and leaving the second opening in said clip a vacant opening; said banding machine comprising a frame with top and bottom surfaces, a guideway for positioning the wire longitudinally relative to the frame surface, a clip inserting recess formed upwardly within the bottom surface portion of said frame and located between the ends thereof, a clip nesting hollow cavity arranged adjacent and forwardly of said clip inserting recess and between the top and bottom surfaces and joining said clip inserting recess, said guidway forming a wire groove disposed upwardly in said bottom surface and joining said nesting cavity and extending forwardly therefrom, said guideway forming a vertical opening through the rear portion of said frame and extending forwardly of said clip nesting cavity, an anvil means assembled with said frame, said nesting cavity being adapted to receive the assembled clip therein and said wire groove being adapted to receive the assembled end of the wire therein, resilient pawl means mounted upon said frame for gripping the free end portion of the said wire placed longitudinally through said vertical opening in the frame and over the top surface of the forward end thereof, gripper means slidably mounted with said frame and in said vertical opening for exerting tension in said band of wire secured to said clip, a severing arm means pivotally mounted on the said frame whereby downwardly movement of one of its end portion engages the wire forcing it against said anvil and detaching the extreme free end portion of said band of wire leaving the remaining free end portion in vertical alignment with said vacant opening of said clip in said cavity, whereby continued downward movement of said severing arm means forces the free end of said wire into said vacant opening of said clip, whereby the ends of said wire are spaced apart from each other.

2. In a portable banding tool embodying a suitable frame, a guideway in said frame for guiding a banding assembly thereby positioning a length of banding wire in the guideway and about an object, said wire having a two opening type securing clip secured to one end thereof by having one end of the wire secured within one opening and leaving the opposite end of the wire a free end and the second opening in the clip vacant, said guideway including: interior longitudinal confronting plain vertical side walls formed in the forward end portion of the frame for positioning the band of wire therein, a pair of recesses forming a cavity located and joining said guideway for nesting the clip assembled and secured to said wire, said guideway forming an enlarged opening in the frame at the rear end thereof, a wire gripper means attached to the forward end of said frame adjacent said guideway for holding the free end of the wire momentarily in position within the guideway and preventing backward movement thereof, a wedge shaped tensioning means slidably mounted within the enlarged opening at the rear end of said frame and juxtaposed one side wall extension of said guideway and movably longitudinally relative to said confronting side walls of said guideway for engaging and feeding and tensioning the band of wire therein, a severing knife arm pivotally mounted on the frame and movable transversely of the said guideway for detachings surplus wire from the free end of the banding wire, an operating lever with linkage and connections for operating said tensioning means forwardly, said severing knife arm downwardly when moved in one direction, said operating lever withdrawing said tensioning means and raising said severing knife when moved in a second position to open the guideway for permitting insertion and withdrawing of the wire therefrom, whereby when the operating lever is moved to the first position with the Wire in the guideway it will force the severing arm into engagement with the wire thereby severing the surplus free end of the wire and subsequently forcing the remaining free end of the wire into the vacant opening in the clip assembled in said cavity.

3. A hand tool for securing a wire about an object with a clip having an opening and assembled with one end of the wire, said tool including: a frame, a clip recess in the lower surface of said frame, a clip nesting chamber formed between the top and lower surfaces of said frame and ahead of said clip recess and joining the same, a wire groove in the lower surface of said frame extending from said chamber and longitudinally forwardly therefrom, a longitudinal slot extending vertically through the rear end of said frame and extending forwardly to said chamber, pawl means mounted to said frame for holding the wire portion against free movement, gripper means mounted to said frame for exerting tension in said wire by movement thereof relative to said frame, severing means mounted to said frame adjacent said clip chamber for detaching the free end portion of the Wire extending forwardly therefrom, said severing means also forcing the new free end of the wire into a second position in said clip leaving the body portion of said clip between the ends of said wire, said frame having a jaw member in front of said open slot and a rear body portion behind said open slot, said rear body portion having an upwardly extending housing embodying said severing means, a rear member slidably mounted upon the rear end of said housing, a rod extending horizontally through said rear member and threaded into said housing, a coil spring assembled upon the free end of said rod between said rear member and a stop member on the free end of said rod, said coil spring pressing said rear member against said housing, a crank pivotally mounted in a vertical plane upon said rear memher, the lower end of said crank pivotally connected to said gripper, the upper end of said crank attached to link means which is attached to an operating bar pivotally attached to said frame, said rear member adapted to compress said coil spring should the tension of the wire be come excessive and slide rearwardly on said rod, said stop member on the end of said rod being adjustable thereby providing adjustable control of said coil spring to govern any desired tension in the wire.

4. The tool defined in claim 3 wherein rearward movement of said gripper has a corrugated front gripping edge portion and a smooth tapered rear edge portion, said tapered rear edge portion being in sliding contact with a smooth tapered front edge portion of a pressure block slidably mounted on said horizontal rod threaded in said housing, said movement of said gripper eflfects said block to move along said rod due to a pin being secured in said block and movable within an elongated slot in said gripper, rearward movement of said gripper and the raising of the front end of said severing means contracted at its rear end by said operating bar clears the slot in the said frame whereby the tool may be removed from the wire upon slight movement of the tool forwardly thereby removing the clip from its chamber.

5. A hand tool for securing a wire about an object with a clip having an opening and assembled with one end of the wire, said tool includes: a frame, a clip recess in the lower surface of said frame, a clip nesting chamber formed between the top and lower surfaces of said frame and ahead of said clip recess and joining the same, a wire groove in the lower surface of said frame extending from said chamber and longitudinally forwardly therefrom, a longitudinal slot extending vertically through the rear end of said frame and extending forwardly to said chamber, pawl means mounted to said frame for holding the wire portion against free movement, gripper means mounted to said frame for exerting tension to said Wire by movement thereof relative to the frame, said gripper means being movably mounted within the slot extending through the rear end of said frame, the jaw of said gripper being adjacent the vertical side wall of said slot and adapted to grip the wire arranged there between, a crank, one end of said crank pivotally attached to a bar which is pivotally attached to an operating lever attached to 45 said frame at its lower end thereof, said open slot arranged to permit tensioning of said wire about an object and over the forward end of said frame when in use, severing means mounted to said frame adjacent said clip chamber for detaching the free end portion of the wire extending forwardly therefrom, said severing means also forcing the new free end of the wire into a second position in said clip leaving the body portion of said clip between the ends of said wire.

References Cited by the Examiner UNITED STATES PATENTS 1,876,499 9/32 Hofl'rnaun 140-93.4 2,076,276 4/37 Porter 140-93.2 2,097,946 11/37 Childress -934 2,643,687 6/53 Schlage et al l40-93.4 2,868,238 1/59 Hall 140--93.2 2,969,221 l/6l Harmes 254-51 CHARLES W. LANHAM, Primary Examiner.

WILLIAM F. PURDY, RICHARD A. WAHL,

Examiners. 

1. IN A BANDING MACHINE FOR TENSIONING AND FASTENING A BAND OF WIRE AND A CLIP ABOUT AN OBJECT, SAID CLIP INTERPOSED BETWEEN THE ENDS OF THE WIRE, SAID CLIP HAVING AT LEAST TWO LONGITUDINAL SECURING OPENINGS WITH YAWS EXTENDING INWARDLY FROM ITS OPPOSITE END EDGES, A PARTITION PORTION OF SAID CLIP DISPOSED BETWEEN THE SAID OPEN INGS THEREIN, THE OPENINS HAVING A WIDTH TO GRIP THE SIDES OF THE WIRE AND SECURE THE WIRE THEREIN WHEN PRESSURE IS APPLIED TO THE WIRE, ONE END OF THE BAND OF WIRE SECURED WITHIN ONE OPENING OF SAID CLIP LEAVING THE OPPOSITE OPENING OF THE WIRE A FREE END AND LEAVING THE SECOND OPENINGS IN SAID CLIP A VACANT OPENING; SAID BANDING MACHINE COMPRISING A FRAME WITH TOP AND BOTTOM SURFACES, A GUIDEWAY FOR POSITIONING THE WIRE LONGITUDINALLY RELATIVE TO THE FRAME SURFACE, A CLIP INSERTING RECESS FORMED UPWARDLY WITHIN THE BOTTOM SURFACE PORTION OF SAID FRAME AND LOCATED BETWEEN THE ENDS THEREOF, A CLIP NESTING HOLLOW CAVITY ARRANGED ADJACENT AND FORWARDLY OF SAID CLIP INSERTING RECESS AND BETWEEN THE TOP AND BOTTOM SURFACES AND JOINING SAID CLIP INSERTING RECESS, SAID GUIDWAY FORMING A WIRE GROOVE DISPOSED UPWARDLY IN SAID BOTTOM SURFACE AND JOINING SAID NESTING CAVITY AND EXTENDING FORWARDLY THEREFROM, SAID GUIDEWAY FORMING A VERTICAL OPENING THROUGH THE REAR PORTION OF SAID FRAME AND EXTENDING FORWARDLY OF SAID CLIP NESTING CAVITY, AN ANVIL MEANS ASSEMBLED WITH SAID FRAME, SAID NESTING CAVITY BEING ADAPTED TO RECEIVE THE ASSEMBLED CLIP THEREIN AND SAID WIRE GROOVE BEING ADAPTED TO RECEIVE THE ASSEMBLED END OF THE WIRE THEREIN, RESILIENT PAWL MEANS MOUNTED UPON SAID FRAME FOR GRIPPING THE FREE END PORTION OF THE SAID WIRE PLACED LONGITUDINALLY THROUGH SAID VERTICAL OPENING IN THE FRAME AND OVER THE TOP SURFACE OF THE FORWARD END THEREOF, GRIPPER MEANS SLIDABLY MOUNTED WITH SAID FRAME AND IN SAID VERTICAL OPENING FOR EXERTING TENSION IN SAID BAND OF WIRE SECURED TO SAID CLIP, A SEVERING ARM MEANS PIVOTALLY MOUNTED ON THE SAID FRAME WHEREBY DOWNWARDLY MOVEMENT OF ONE OF ITS END PORTION ENGAGES THE WIRE FORCING IT AGAINST SAID ANVIL AND DETACHING THE EXTREME FREE END PORTION OF SAID BAND OF WIRE LEAVING THE REMAINING FREE END PORTION IN VERTICAL ALIGNMENT WITH SAID VACANT OPENING OF SAID CLIP IN SAID CAVITY, WHEREBY CONTINUED DOWNWARDLY MOVEMENT OF SAID SEVERING ARM MEANS FORCES THE FREE END OF SAID WIRE INTO SAID VACANT OPENING OF SAID CLIP, WHEREBY THE ENDS OF SAID WIRE ARE SPACED APART FROM EACH OTHER. 